CA2151832C - Ameliorations apportees a des dispositifs d'injection - Google Patents

Ameliorations apportees a des dispositifs d'injection

Info

Publication number
CA2151832C
CA2151832C CA002151832A CA2151832A CA2151832C CA 2151832 C CA2151832 C CA 2151832C CA 002151832 A CA002151832 A CA 002151832A CA 2151832 A CA2151832 A CA 2151832A CA 2151832 C CA2151832 C CA 2151832C
Authority
CA
Canada
Prior art keywords
piston rod
thread
nut element
injection
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002151832A
Other languages
English (en)
Other versions
CA2151832A1 (fr
Inventor
Gustav Levander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Health AB
Original Assignee
Pharmacia and Upjohn AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pharmacia and Upjohn AB filed Critical Pharmacia and Upjohn AB
Publication of CA2151832A1 publication Critical patent/CA2151832A1/fr
Application granted granted Critical
Publication of CA2151832C publication Critical patent/CA2151832C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M5/2448—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic comprising means for injection of two or more media, e.g. by mixing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/31508—Means for blocking or restricting the movement of the rod or piston provided on the piston-rod

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Polarising Elements (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Glass Compositions (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif à tige de piston destiné à être utilisé dans un dispositif d'injection pour cartouche d'injection. Ledit dispositif à tige de piston présente un seul ou plusieurs filets (3) sur une partie prédéterminée de sa longueur, au-delà de laquelle chaque filet (3) devient une rainure longitudinale (5) de sorte que le mouvement de rotation de la tige de piston se transforme en un mouvement axial au-delà de cette longueur prédéterminée. Le ou lesdits filets (3) se présentent sous forme de rainures hélicoïdales dans la tige de piston (1), lesquelles deviennent, au-delà de la longueur prédéterminée, des rainures longitudinales (5). Un élément à écrou (6) coopère avec le filet (3) grâce à un dispositif doté d'au moins une saillie (10) orientée radialement vers l'intérieur pour chaque filet et guidant la tige de piston (1) au moyen de la ou des rainures formant ledit filet.
CA002151832A 1993-10-29 1994-10-10 Ameliorations apportees a des dispositifs d'injection Expired - Lifetime CA2151832C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9303568-1 1993-10-29
SE9303568A SE9303568D0 (sv) 1993-10-29 1993-10-29 Improvements in injection devices
PCT/SE1994/000950 WO1995011711A1 (fr) 1993-10-29 1994-10-10 Ameliorations apportees a des dispositifs d'injection

Publications (2)

Publication Number Publication Date
CA2151832A1 CA2151832A1 (fr) 1995-05-04
CA2151832C true CA2151832C (fr) 1999-12-21

Family

ID=20391576

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002151832A Expired - Lifetime CA2151832C (fr) 1993-10-29 1994-10-10 Ameliorations apportees a des dispositifs d'injection

Country Status (16)

Country Link
US (2) US5728075A (fr)
EP (1) EP0676969B1 (fr)
JP (1) JP2683628B2 (fr)
AT (1) ATE175583T1 (fr)
AU (1) AU667789B2 (fr)
CA (1) CA2151832C (fr)
DE (1) DE69415960T2 (fr)
DK (1) DK0676969T3 (fr)
ES (1) ES2126158T3 (fr)
FI (1) FI113622B (fr)
GR (1) GR3029613T3 (fr)
NO (1) NO309801B1 (fr)
NZ (1) NZ275174A (fr)
RU (1) RU2120808C1 (fr)
SE (1) SE9303568D0 (fr)
WO (1) WO1995011711A1 (fr)

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Also Published As

Publication number Publication date
US5728075A (en) 1998-03-17
FI953191A (fi) 1995-06-28
CA2151832A1 (fr) 1995-05-04
AU667789B2 (en) 1996-04-04
RU2120808C1 (ru) 1998-10-27
NO952591D0 (no) 1995-06-28
FI113622B (fi) 2004-05-31
JPH08503160A (ja) 1996-04-09
AU8069394A (en) 1995-05-22
DE69415960T2 (de) 1999-06-10
FI953191A0 (fi) 1995-06-28
NO952591L (no) 1995-07-19
ES2126158T3 (es) 1999-03-16
JP2683628B2 (ja) 1997-12-03
EP0676969B1 (fr) 1999-01-13
GR3029613T3 (en) 1999-06-30
WO1995011711A1 (fr) 1995-05-04
NO309801B1 (no) 2001-04-02
EP0676969A1 (fr) 1995-10-18
DE69415960D1 (de) 1999-02-25
DK0676969T3 (da) 1999-08-30
ATE175583T1 (de) 1999-01-15
US6004298A (en) 1999-12-21
NZ275174A (en) 1997-09-22
SE9303568D0 (sv) 1993-10-29

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